Seitz® FA Series Depth Filter Sheets product photo Primary L

Seitz® FA Series Depth Filter Sheets

For Filtration of Fruit Juices

Seitz FA series depth filter sheets were developed to meet the production needs and requirements of the fruit juice industry and associated applications requiring thermoacidophilic bacteria (TAB) spore control.

The FA filter sheets combine the process mechanisms of surface filtration, depth filtration and adsorption to fulfill the specific requirements of fruit juice, juice concentrate and ingredient manufacturers.

FA filter sheets are available in multiple grades suitable for polishing, clarification and microbial reduction.

 
Features Benefits
Homogenous and consistent media, available in four grades
  • Suitable for all juice and concentrate applications
  • Proven performance
  • Reliable microbial reduction with tighter grades
A combination of surface, depth and adsorptive filtration
  • High solids retention
  • Very good permeability
  • Excellent filtrate quality
Each individual filter sheet is laser etched with the sheet grade, batch number and production date. Full traceability
 


* Required
Need Help?
Download Datasheet
Description

For Filtration of Fruit Juices

Seitz FA series depth filter sheets were developed to meet the production needs and requirements of the fruit juice industry and associated applications requiring thermoacidophilic bacteria (TAB) spore control.

The FA filter sheets combine the process mechanisms of surface filtration, depth filtration and adsorption to fulfill the specific requirements of fruit juice, juice concentrate and ingredient manufacturers.

FA filter sheets are available in multiple grades suitable for polishing, clarification and microbial reduction.

 
Features Benefits
Homogenous and consistent media, available in four grades
  • Suitable for all juice and concentrate applications
  • Proven performance
  • Reliable microbial reduction with tighter grades
A combination of surface, depth and adsorptive filtration
  • High solids retention
  • Very good permeability
  • Excellent filtrate quality
Each individual filter sheet is laser etched with the sheet grade, batch number and production date. Full traceability
 
Applications
 
Grade Application
FA 05 Reduction of microorganisms prior to storage of fruit juices and concentrates or prior to final bottling
FA 10 Polishing filtration of clear fruit juices prior to bottling, to achieve brilliant products, especially for apple juice filtration
FA 20 Polishing filtration prior to bottling, when high throughputs are required
FA 30 Clarifying filtration of colored juices such as red/black currant or cherry juice; clarifying filtration of apple juice
 
Specifications

Food Contact Compliance

  • Food contact compliant filters are available. Please consult the Declarations of Compliance for applicable part numbers at the links below.
  • Please refer to Food Contact Compliance and Safety for a Declaration of Compliance to specific National Legislation and/or Regional Regulatory requirements for food contact use.


Main Constituents

  • Cellulose, diatomaceous earth (DE, Kieselguhr), perlite.

Characterization

 
Grade Mass per Unit Area g/m2 Thickness
mm
Ash
%
Water
Permeability2
L/m2/min
(gal/ft2/min)
FA 05 1350 3.7 46 95 (2.3)
FA 10 1350 3.7 46 146 (3.6)
FA 20 1250 4.0 46 510 (12.5)
FA 30 1250 4.2 46 780 (18.9)
 
These figures have been determined in accordance with in-house test methods and the methods of the Technical / Analytical Work Group within the European Depth Filtration Association.

2The permeability was measured under test conditions with clean water at 20 °C (68 °F) and a Δp of 1 bar (14.5 psi).

Regeneration

FA series filter sheets may be rinsed with clean water (in the forward or reverse3direction) to increase throughput and to optimize economic efficiency. Optimal regeneration of filter sheets installed in a plate and frame filter may be achieved with serial rinses of warm water followed by hot water. An example protocol is shown below.
  1. Rinse with warm water (60 °C / 140 °F) for 15 minutes
  2. Rinse with hot water (70 – 80 °C / 158 – 176 °F) for 8 – 10 minutes
3When rinsing in the reverse flow direction it is critical to control particulate and microbial levels in the rinse water so that the filtrate side of the sheet is not contaminated. Water used for reverse flow flushes should be particle-free, and if the filter will not be sterilized prior to re-use the water should be free of microbes. Backwashing should be in a diagonal direction from outlet to inlet in a plate and frame filter.

Sterilization and Sanitization

 
Method Temperature
°C (°F)
Maximum
Differential
Pressure bar (psi)
Time4/
Cycle
min
Steam 125 (257) 0.5 (7.2) 20
Hot Water 90 (194) 1 (14.5) 30
 
4 The actual time required may vary as a function of the process conditions.

Filtration Guidelines5

For achieving optimal filtrate quality, the following flow velocities and differential pressures should not be exceeded:
 
Grade Flow Velocity
L/m2/h (gal/ft2/h)
Maximum Differential
Pressure bar (psi)
FA 05 500 (12.3) 1.5 (21.8)
FA 10 850 (20.9) 3 (43.5)
FA 20 850 (20.9) 3 (43.5)
FA 30 850 (20.9) 3 (43.5)
 
As the filtrate quality can be impacted by the filtration flow rate, the following table provides further guidelines for sheet selection and flux rate for apple juice concentrate.

 
Application Grade Flow Velocity
for Concentrate
L/m2/h
(gal/ft2/h)
Flow Velocity for
Half Concentrate
L/m2/h
(gal/ft2/h)
Filtration prior
to concentration
FA 10 200-250
(4.9-6)
400-500
(9.8-12.3)
Microbial
reduction (low
bacterial load)
FA 05 200-250
(4.9-6)
400-500
(9.8-12.3)
Microbial
reduction (high
bacterial load)
FA 05 175-200
(4.3-4.9)
350-400
(8.6-9.8)
 
5Please contact Pall for recommendations on your specific filtration process as results may vary by product, pre-filtration and filtration conditions.


For additional operating guidelines, including rinsing of sheets prior to use, please refer to instructions provided by Pall.
Performance

Quality

  • Filter sheets produced in a controlled environment
  • Manufactured according to ISO 9001:2008 certified Quality Management System

Relative Retention Rating1

Relative Retention Rating
1 Effective removal performance of filter sheets is dependent on process conditions.
Type
Sheet Filters and Modules
Use
Adsorption, Clarification, Filtration, Polishing, Prefiltration, Reduction, Removal, Retention, Separation, Stabilization
Ordering Information

Available Sheet Formats

Rectangular Sheets
  • 400 mm x 400 mm (15.8 in. x 15.8 in.)
  • 600 mm x 612 mm (23.6 in. x 24.1 in.)
Application
Polishing Filtration
Segment
Juice